21578354

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6449}}^1$

素因数の和:6697

約数の個数: 16

約数和(自身を含む): 37152000

約数和(自身を除く): 15573646

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6449, 12898, 45143, 90286, 1541311, 3082622, 10789177, 21578354]

約数ペア:

[(1, 21578354), (2, 10789177), (7, 3082622), (14, 1541311), (239, 90286), (478, 45143), (1673, 12898), (3346, 6449)]